NTSB

The pilot’s failure to maintain directional control and subsequent exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall and collision with terrain.

The pilot’s failure to maintain airplane control during a water takeoff after an encounter with the wake from a boat.

The pilot’s misjudgment of the airplane’s speed and altitude during the landing approach, and his failure to attain the proper touchdown point during landing, which resulted in a runway overrun. Contributing to the accident were his access to a limited set of flight controls, his obstructed vision due to his seating position, and the pilot’s decision to return to the relatively constrained runway following a perceived anomaly of the airplane’s flaps.

The pilot’s decision to attempt a takeoff from the middle of the runway in shifting wind conditions, which resulted in an aborted takeoff and runway excursion.

The pilot’s inability to regain airplane control after a pilot-induced spin conducted during a flight test, which resulted in a collision with terrain.

The student pilot’s inadequate decision to make a premature turn onto a taxiway which resulted in a collision with a taxiway sign.

The passenger’s inadvertent application of the rear brakes during landing, which resulted in a nose-over.

The pilot’s loss of situation awareness which resulted in landing in a grass area and the subsequent collision with a runway marker.